AD9542BCPZ

Series:	*
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Mounting Type:	Surface Mount
Package / Case:	64-WFQFN Exposed Pad
Supplier Device Package:	64-LFCSP (9x9)
Base Part Number:	AD9542

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AD9542BCPZ Application Field and Working Principle

AD9542BCPZ was released by Analog Devices, Inc. as part of its clock family. It is a low-power, quad-channel clock/timing generator, PLL/Frequency Synthesizer and DAC synthesizer, designed to generate multiple high-frequency clocks and precision single-ended and differential analog muxed output signals. This device is intended for clock and timing applications such as computer networking, storage, communications, and video distribution systems.The AD9542BCPZ can generate up to four different reference clock signal outputs with selectable frequency, output amplitude, output buffers and analog multiplex (mux) modes. With these features, the AD9542BCPZ can provide users with a reliable and versatile clock signal generator for a variety of applications.The AD9542BCPZ is based on a low-power, four-channel half-rate current-steering DAC (CSDAC) that is built into the device. It provides a unique combination of frequency and amplitude control for each channel and is integrated with a dual-loop serial input PLL/Frequency synthesizer. The device’s serial PLL greatly reduces board space and provides flexibility to generate multiple clock outputs up to 10x faster than traditional DAC-based clock/timing solutions.The device is designed to be configurable via a serial two-wire interface (I2C). This feature allows the user to program the frequency and amplitude of the clock outputs, as well as the mux operation mode, either individually or as a group. The AD9542BCPZ also includes loop filter components, an oscillator and a wide supply voltage range of 1.5V to 3.6V.The device can be used in a wide range of clock/timing applications, including frequency synthesis, frequency hopping, time modulated spreading, direct digital frequency synthesis (DDFS), frequency-adjustable multiply and divide, systems clock synchronization, and data recovery clock generation. It can also provide the user with data conversion solutions, including analogue-to-digital conversion (ADC), digital-to-analogue conversion (DAC), and digital-to-analogue/analogue-to-digital conversion (AD/DA).At the working principle level, the AD9542BCPZ incorporates a half-rate current-steering DAC CSDAC architecture, which combines multiple signals and produces an output clock signal. The PLL/Frequency synthesizer can produce an output clock signal from a given frequency. It uses a voltage-controlled oscillator (VCO) to form the basis of the synthesizer system and then compares the frequency of the feedback signal to the desired output frequency to regenerate a new output frequency. The loop filter components play an important role in this process by providing stability and limiting the possible frequency drift from the desired frequency.The AD9542BCPZ is a versatile clock/timing generator with a wide range of applications and capabilities. With its low-power, robust, and flexible design, the device is capable of providing a reliable and versatile clock/timing solution for a variety of applications.

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